Scavenger Holdout enters the battlefield tapped. When Scavenger Holdout enters the battlefield, you may pay {3}. If you do, create two 1/1 green Scout creature tokens. {T}: Add {C}.
Whenever one or more creatures attack you or a planeswalker you control, put a charge counter on Windmill Project. {T}: Add {C}. {T}, Remove X charge counters from Windmill Project: Add X mana in any combination of colors.